http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111145071-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T2201-005 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T1-0078 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T1-00 |
| filingDate | 2019-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111145071-B |
| titleOfInvention | Three-channel super-surface multiplexing method for superposing watermarks in continuous gray level images |
| abstract | The invention relates to the technical field of micro-nano optics and optical anti-counterfeiting, and discloses a three-channel super-surface multiplexing method for superposing watermarks in continuous gray level images, which comprises the following steps: the nano brick array comprises a plurality of nano brick structure units, and at least two groups of alternative size parameters with different spectral responses of the nano brick structure units are obtained through optimization; selecting a three-channel super surface to multiplex a continuous gray image, a watermark image and a binary image; designing a nano-brick steering angle in the nano-brick array according to the continuous gray level image and the watermark anti-counterfeiting image; selecting nano brick structure units with corresponding sizes from multiple groups of candidate size parameters according to the binary image to arrange; and arranging the nano brick unit structures according to the nano brick unit structure size parameters and the nano brick steering angles to obtain the three-channel metamaterial. The invention can realize the multiplexing of three-channel information through a single super surface array structure and has the characteristics of compact structure, high information density and strong concealment. |
| priorityDate | 2019-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.